In-situ deposition of silicon on the leading edge of the ALT-II limiter in TEXTOR-94

G. Mank; J. A. Boedo; P. Wienhold; H. G. Esser; K. H. Finken; L. Koenen; A. Pospieszczyk; J. Rapp; J. Schwelberger; F. Weschenfelder; J. Winter

doi:10.1016/S0022-3115(96)00613-7

In-situ deposition of silicon on the leading edge of the ALT-II limiter in TEXTOR-94

G. Mank
, J. A. Boedo
, P. Wienhold
, H. G. Esser
, K. H. Finken
, L. Koenen
, A. Pospieszczyk
, J. Rapp
, J. Schwelberger
, F. Weschenfelder
, J. Winter

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

Silane gas was injected through apertures in the leading edges of the ALT-II limiter in TEXTOR during tokamak discharges. The gas injection produces a hard, robust local coating which protects the exposed surfaces against erosion. As a byproduct, metallic impurities in the plasma are reduced, a radiation belt at the plasma periphery is generated and there is evidence that a major part of the wall is coated. For the given experimental condition the rise time until the carbon flux on a siliconized surface reaches the former level amounts to 5-10 s for ohmic discharges. For strongly heated discharges the deposited Si layer is eroded in about 1 s. The deposition technique has potential applications for in-situ protection/repair of divertor erosion in ITER.

Original language	English
Pages (from-to)	821-826
Number of pages	6
Journal	Journal of Nuclear Materials
Volume	241-243
DOIs	https://doi.org/10.1016/S0022-3115(96)00613-7
State	Published - Feb 2 1997
Externally published	Yes
Event	Proceedings of the 1996 12th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices - Saint-Raphael, Fr Duration: May 20 1996 → May 24 1996

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10.1016/S0022-3115(96)00613-7

Cite this

@article{a610f85e924b4846a1c60818f9a147fb,

title = "In-situ deposition of silicon on the leading edge of the ALT-II limiter in TEXTOR-94",

abstract = "Silane gas was injected through apertures in the leading edges of the ALT-II limiter in TEXTOR during tokamak discharges. The gas injection produces a hard, robust local coating which protects the exposed surfaces against erosion. As a byproduct, metallic impurities in the plasma are reduced, a radiation belt at the plasma periphery is generated and there is evidence that a major part of the wall is coated. For the given experimental condition the rise time until the carbon flux on a siliconized surface reaches the former level amounts to 5-10 s for ohmic discharges. For strongly heated discharges the deposited Si layer is eroded in about 1 s. The deposition technique has potential applications for in-situ protection/repair of divertor erosion in ITER.",

author = "G. Mank and Boedo, \{J. A.\} and P. Wienhold and Esser, \{H. G.\} and Finken, \{K. H.\} and L. Koenen and A. Pospieszczyk and J. Rapp and J. Schwelberger and F. Weschenfelder and J. Winter",

year = "1997",

month = feb,

day = "2",

doi = "10.1016/S0022-3115(96)00613-7",

language = "English",

volume = "241-243",

pages = "821--826",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

note = "Proceedings of the 1996 12th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices ; Conference date: 20-05-1996 Through 24-05-1996",

}

TY - JOUR

T1 - In-situ deposition of silicon on the leading edge of the ALT-II limiter in TEXTOR-94

AU - Mank, G.

AU - Boedo, J. A.

AU - Wienhold, P.

AU - Esser, H. G.

AU - Finken, K. H.

AU - Koenen, L.

AU - Pospieszczyk, A.

AU - Rapp, J.

AU - Schwelberger, J.

AU - Weschenfelder, F.

AU - Winter, J.

PY - 1997/2/2

Y1 - 1997/2/2

N2 - Silane gas was injected through apertures in the leading edges of the ALT-II limiter in TEXTOR during tokamak discharges. The gas injection produces a hard, robust local coating which protects the exposed surfaces against erosion. As a byproduct, metallic impurities in the plasma are reduced, a radiation belt at the plasma periphery is generated and there is evidence that a major part of the wall is coated. For the given experimental condition the rise time until the carbon flux on a siliconized surface reaches the former level amounts to 5-10 s for ohmic discharges. For strongly heated discharges the deposited Si layer is eroded in about 1 s. The deposition technique has potential applications for in-situ protection/repair of divertor erosion in ITER.

AB - Silane gas was injected through apertures in the leading edges of the ALT-II limiter in TEXTOR during tokamak discharges. The gas injection produces a hard, robust local coating which protects the exposed surfaces against erosion. As a byproduct, metallic impurities in the plasma are reduced, a radiation belt at the plasma periphery is generated and there is evidence that a major part of the wall is coated. For the given experimental condition the rise time until the carbon flux on a siliconized surface reaches the former level amounts to 5-10 s for ohmic discharges. For strongly heated discharges the deposited Si layer is eroded in about 1 s. The deposition technique has potential applications for in-situ protection/repair of divertor erosion in ITER.

UR - https://www.scopus.com/pages/publications/16744365437

U2 - 10.1016/S0022-3115(96)00613-7

DO - 10.1016/S0022-3115(96)00613-7

M3 - Conference article

AN - SCOPUS:16744365437

SN - 0022-3115

VL - 241-243

SP - 821

EP - 826

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

T2 - Proceedings of the 1996 12th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices

Y2 - 20 May 1996 through 24 May 1996

ER -

In-situ deposition of silicon on the leading edge of the ALT-II limiter in TEXTOR-94

Abstract

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